Question: For the question about e-mail in the previous exercise, the 14 females in the GSS of age at least 80 had the responses 0, 0,

For the question about e-mail in the previous exercise, the 14 females in the GSS of age at least 80 had the responses 0, 0, 0, 0, 1, 1, 1, 2, 2, 6, 6, 7, 7, 10.
a. Using the web app, software or a calculator, find the sample mean and standard deviation and the standard error of the sample mean.
b. Find and interpret a 90% confidence interval for the population mean.
c. Explain why the population distribution may be skewed right. If this is the case, is the interval you obtained in part b useless, or is it still valid? Explain.

Step by Step Solution

★★★★★

3.29 Rating (158 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a The mean is 307 the standard ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (2 attachments)

1544_605d88e204e66_676143.pdf

180 KBs PDF File

1544_605d88e204e66_676143.docx

120 KBs Word File

Students Have Also Explored These Related Statistics The Art and Science Questions!

The following profit reconciliation statement has been prepared by the management accountant of ABC Limited for March: The standard cost card for the company's only product is as follows: ()...

For the question about e-mail in the previous exercise, suppose seven females in the GSS sample of age at least 80 had the responses 0, 0, 1, 2, 5, 7, 14, a. Using software or a calculator, find the...

Reconsider the previous exercise. The Pew study also considered age as an explanatory variable, producing the following 2 Ã 2 table of counts: Analyze these data with appropriate numerical...

Reconsider the study mentioned in the previous exercise about guessing the size of Milwaukees population. Do the data provide evidence of the anchoring phenomenon among students like the ones in this...

8.37 Grandmas using e-mail For the question about e-mail in the previous exercise, the 14 females in the GSS of age at least 80 had the responses 0, 0, 0, 0, 1, 1, 1, 2, 2, 6, 6, 7, 7, 10. a. Using...

Chapter 03, Concept Check Question 23(b) A student went to the local county courthouse (in Cumberland County, Pennsylvania, in June and July of 1993) to gather data on ages of soon-to-be husbands and...

Given summary about this article the most important Humans inherit artificial intelligence biases Luca Vicente & Helena Matute * Artificial intelligence recommendations are sometimes erroneous and...

SUMMARY OF LEARNING OBJECTIVES AND KEY POINTS 1. Identify the basic elements of organizations. Organizations are made up of a series of elements: Designing jobs Grouping jobs Establishing reporting...

Give a detailed work please thankyou 7. Knowledge of economics is divided into 3 groups: 20% of the population is Excellent, 60% Good, and 20% Weak. Past studies have found that 70% of those in the...

2.2 51 Summarizing Data for a Quantitative Variable Exercises Methods 11. Consider the following data. WEB 14 19 24 19 16 20 24 20 file Frequency a. b. SELF test 21 22 24 18 17 23 26 22 23 25 25 19...

When a survey asked, "About how many hours per week do you spend sending and answering e-mail?" the 7 females in the survey sample of age at least 80 had the following responses Use the data to...

For the component described in the problem indicated, determine (a) The principal mass moments of inertia at the origin, (b) The principal axes of inertia at the origin. Sketch the body and show the...

Supervisor Robert Hall wants to determine the percent of time a machine in his area is idle. He decides to use work sampling, and his initial estimate is that the machine is idle 20% of the time. How...

Party to whom special indorsement is made. Person in physical possession of commercial paper payable to bearer, a document of title directing delivery to bearer, or an instrument security in bearer...

The capital accounts of Trent Henry and Tim Chou have balances of $160,000 and $100,000, respectively. LeAnne Gilbert and Becky Clarke are to be admitted to the partnership. Gilbert buys one-fifth of...

Robin Corporation would like to transfer excess cash to its sole shareholder, Adam, who is also an employee. Adam is in the 28% tax bracket, and Robin is in the 34% bracket. Because Adams...

The data below are selected accounts from the adjusted trial balance of Dan's Sports Equipment on September 30, 20x7, the fiscal year end. The company's beginning merchandise inventory was $81,222...

Use the information in RE21-3. Prepare the journal entries that Richie Company (the lessor) would make in the first year of the lease assuming the lease is classified as a direct financing lease....

Gidley Inc. purchased a piece of equipment on January 1, 2014. The following information is available for this purchase: Purchase price ........$950,000 Transportation ........$100,000a Installation...

1.10 Explain why contractionary monetary policy lowers Real GDP more in an open economy than in a closed economy.

5.116 Bayes rule Suppose we know P1A2, P1B A2, and P1Bc Ac2, but we want to find P1A B2. a. Using the definition of conditional probability for P(A|B) and for P(B|A), explain why P(A|B) - P(A and...

5.115 Generalizing the multiplication rule For events A, B, and C, explain why P1A and B and C2 = P1A2 * P1B A2 * P1C A and B2.

5.114 Generalizing the addition rule For events A, B, and C such that each pair of events is disjoint, use a Venn diagram to explain why P1A or B or C2 = P1A2 + P1B2 + P1C2.

This question is a variant of the Sport Hotel example that was presented in class, in the class notes, and in the Real Option chapter. Suppose that in the example, the first year expenditures that...

Janina, Incorporated, has the following mutually exclusive projects. Year Project A Project B 0 $ 18,000 $ 21,000 1 11,000 12,000 2 7,500 8,500 3 2,700 7,500 a-1. Calculate the payback period for...

Free and Costly Trade Credit Using the information below, if you do not take the discount, how much will be the additional amount of money paid for the year? 365 days per year Purchases = $1,000,000...